Redmi K30 Ultra vs Umidigi Z2
| Type | Touch | Touch |
| Dimensions | 163.30 x 75.40 x 9.10 mm | 153.40 x 74.40 x 8.30 mm |
| Weight | 213.00 g | 165.00 g |
| Display size | 6.67" | 6.20" |
| Display | Color / AMOLED 16M colors 120 Hz 1080 x 2400 px (6.67") 395 ppi | Color / IPS TFT 16M colors 1080 x 2246 px (6.20") 402 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 |  |
| Additional display | | |
| Protection of the secondary display | | |
| Standard battery | Li-Ion 4500 mAhBuy powerbank
| Li-Ion 3850 mAhBuy powerbank
|
| Quick battery charging | Quick Charge 4 | Pump Express Plus |
| Wireless battery charging | | |
| Internal memory | 128 GB, 256 GB, 512 GB | 64 GB |
| RAM memory | 6 GB, 8 GB | 6 GB |
| Memory cards | |  microSD, microSDHC, microSDXC up to 256 GBBuy memory card |
| Operating system | Android 10 | Android 8.1 Oreo |
| Interface | MIUI 12 | - |
| Processor | MediaTek Dimensity 1000+ MT6889Z | MediaTek Helio P23 MT6763 |
| Processor clock | 2600 MHz | 2000 MHz |
| GPU | ARM Mali-G77 MC9 | ARM Mali-G71 MP2 @700 MHz |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM | |  |
| Announced | 3Q 2020 | 2Q 2018 |
| Other names | K30 Extreme Commemorative Edition; Xiaomi Redmi K30 Ultra | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1700 1900 2100 | 850 900 1700 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 850 TDD LTE: 2600, 2500, 2300, 2000, 1900 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 800, 700 TDD LTE: 2600, 2500, 2300, 1900 |
| Standard 5G | FDD 5G: 2100, 1800 TDD 5G: 4700, 3500, 2500 | |
| CDMA | 850 | 850 1900 CDMA2000 1X |
| Standard TD-SCDMA | | 1900 2000 |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Camera type | Standard | |
| Photo sensor model | Sony IMX686 | Samsung |
| Photo matrix | 64 Mpx | 16 Mpx |
| Sensor size | 1/1,7 | |
| Pixel size | 0,8 µm | |
| Resolution | 9248x6944 px | |
| Optical zoom | | |
| Flash | 3x LED | 2x LED |
| Dual-colour LED flash | 2+1 | 1+1 |
| Video resolution | 3840x2160 px | 3840x2160 px |
| Video formats | H.264, H.265, MPEG4 | MPEG4, H.264 |
| Additional | AF, EIS | - |
| Second camera | | |
| Camera type | Wide-angle | |
| Photo matrix | 13 Mpx | 8 Mpx |
| Optical zoom | | |
| Field of view | 119 ° | |
| Flash | 3x LED | 2x LED |
| Dual-colour LED flash | 2+1 | 1+1 |
| Video formats | H.264, H.265, MPEG4 | MPEG4, H.264 |
| Additional | FF | - |
| Third camera | | |
| Camera type | Telephoto | nd |
| Photo matrix | 5 Mpx | nd |
| Optical zoom | | nd |
| Focal length | 50 mm | nd |
| Flash | 3x LED | nd |
| Dual-colour LED flash | 2+1 | nd |
| Video formats | H.264, H.265, MPEG4 | nd |
| Additional | AF | nd |
| Fourth camera | | |
| Camera type | Depth of field | nd |
| Photo matrix | 2 Mpx | nd |
| Pixel size | 1,75 µm | nd |
| Optical zoom | | nd |
| Flash | 3x LED | nd |
| Dual-colour LED flash | 2+1 | nd |
| Video formats | H.264, H.265, MPEG4 | nd |
| Additional | FF | nd |
CAMERAS - FRONT
| First camera | | |
| Camera type | Portrait | |
| Photo sensor model | | Sony |
| Photo matrix | 20 Mpx | 16 Mpx |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video formats | H.264, H.265, MPEG4 | nd |
| Additional | FF | f/2.0 |
| Second camera | | |
| Photo matrix | nd | 8 Mpx |
| Optical zoom | nd | |
| Flash | nd | |
| Dual-colour LED flash | nd | |
| Video formats | nd | MPEG4, H.264 |
| Additional | nd | - |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | |
| HSCSD | | |
| HSDPA | 42.20 Mbit/s | |
| HSUPA | 11.52 Mbit/s | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v5.1 | v4.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g | v802.11 a/b/g/n |
| WiFi frequencies | 2,4 GHz; 5 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 Type-C | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| QZSS | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | XT9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| MP3 | | |
| Stereo speakers | 2 | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | AAC, AAC+, AMR, APE, FLAC, MID, WAV, eAAC+ | AAC, AAC+, AMR, APE, MP4, WAV, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | ART | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |